Where is the HVAC fuse located?

Hello, it looks like the HVAC is powered up from different fuses and the Body Control module for different purposes. i.e. the display, the controls, etc. The second diagram looks like the control unit fuse. The display part is also powered through the radio fuse, but here's all of them. The RDO fuse looks like the memory fuse since it's a constant battery feed. It probably also keeps the Radio memory. If you pull that fuse you may need to the Radio Code to reset the radio afterwards.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Okay. Well, all the door actuators are all powered and commanded directly from the HVAC control module (The one in the center of the dash), it's different than the Radio/HVAC controller which has the switches. The two communicate through the GMLAN low speed bus. So, on the Controller (let's call the HVAC module with the switches that), I see Blower Motor Switch, Recirculation Switch, Mode Switch, Left Air Temperature Switch (driver), Left Air Temperature Switch (passenger), and Auto Switch.
And what's strange is I only see one Inside Air Temperature sensor, usually with a system like this where the two sides can be set to different temperatures, there's a Temperature sensor for each side.
Were you able to see if the passenger side actuator was opening the door the full range or was that just the driver side that you checked? I have the diagrams pulled up here for the Auto HVAC system. There are four doors in total.

It's possible too that there may be a fault code stored in the HVAC control module if the module sees that the door is only opening so far, and not the full range. Each of these doors has a potentiometer on them, it's just like a throttle position sensor, 0-5-volt range, and as the door moves the voltage will increase or decrease telling the module exactly where the doors location is.
Which button do you push to separate the two sides for different temperatures?

I just wanted to put this up too so you can see which actuator doors do what. It looks like #7, the Mode actuator door is probably the one that divides the two sides for separate temperature settings.

Then one of the doors is not making its full range of movement, or there are 2 sensors called SunLoad sensors, they are photodiodes that change resistance according to the amount of light they receive. I work with these sensors all the time in my other job. The temperatures may differ due to these sensors, I'll put the information below about this system. There may be that one of the sensors is not exactly the same resistance as the other, the HVAC system adjusts the temperature automatically if there is a difference between the two.
It's one of the two scenarios. either a door is not moving fully, or the Sunload sensors may be changing the temperature a slight amount. Alot of what this HVAC system does is automatic. You may want to check the cabin air filter too, I'm not sure how and if that will change anything, but it's worth seeing if it needs to be changed. But here's some information on how the system works and I will pull up the directions for checking the cabin air filter.
The first diagram explains how to check the voltage signals for door movement at the actuator. It's for the passenger side Air temperature door. The SunLoad sensors info is the last diagram.
The last three diagrams are for the Cabin Air filter.

https://www.2carpros.com/articles/how-to-use-a-voltmeter